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Peg Leg Mine (Peg Leg property; Patented claims MS 2395), Grayback [peak] area, Wooley District, Pinal Co., Arizona, USA

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A former underground Cu-Ag-Au mine located in the N½ sec. 31, T4S, R13E (Grayback 7.5 minute topo map), about 3¼ miles SE of Grayback. Produced 1937-1948. Claims extend into secs. 25 & 36, T4S, R12E. Operated in 1937-38 by H.R. Scott; explored in 1944 by Mr. Theodore Phillips; Operated by Mr. Martin Fishback (1948).

Mineralization is in E-W-trending fissure zone through the mine. Dikes and fissures trend both E-W and NW in the area. Paleocene Tea Cup Granodiorite has N-S contact with the Ruin Granite 100 meters west of the mine. Associated rock unit is Ruin (Oracle) Granite.

Regional dikes and fissures trend both E-W and NW in the area. Paleocene Tea Cup Granodiorite has N-S contact with Ruin Granite 100 meters W of the mine.

Mineral List

1 entry listed. 1 valid mineral.

The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


USGS GQ 1206 (1975).

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 15 (Table 1).

U.S. Bureau of Mines file data.

USGS Grayback Quadrangle map.

U.S. Bureau of Land Management Mining District Sheets 614, 640.

Arizona Department of Mineral Resources Peg Leg Mine file.

MRDS database Dep. ID #10046283, MRDS ID #241178; and Dep. ID #10259581, MAS ID #040210953.

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